Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.2 - Calculators and Trigonometric Functions of an Acute Angle - 2.2 Problem Set: 16

Answer

$60^{\circ} 40' $

Work Step by Step

$89^{\circ} 38' $ - $ 28^{\circ} 58' $ $89^{\circ} 38' $ can also be written as $88^{\circ} 98' $ ( carrying 1 degree i.e. 60 minutes to the minutes column) therefore the problem becomes- $88^{\circ} 98' $ - $ 28^{\circ}58' $ $ 88^{\circ} 98' $ - $ 28^{\circ} 58' $ ________ $ 60^{\circ} 40' $ Answer is $60^{\circ} 40' $
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